Improvement in braiding-machines



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Letters Patent' N 91,970, dated June 29, 1786i).

IMPROVEMENT- IN BRAIDINGuMAC-HINES.

The Schedule referred to in these Letters Patent ami making part of the same.

To enable those skilled in the art to make and use my invention, I will describe its construction and operation.

A, in Figure l, represents a top view of the` groovedplate ofthe machine.

B is the stoprim, havinge, limited movement in the are of a circle.

b b b are projections, against which the tensionwelght is to strike, when the thread breaks'.

C is a spring, operating upon inclined, or cam-surfaces, to bring the stop-rim hack to a central position, whenever moved in either direction.

Instead of arranging this spring to operate upon the inclined surfaces, as shown, it may be secured immediately to the stop-rim, in any convenient manner, so as to always bring it back to the -proper place.

I) is the handle, to be moved when the machine is to he started.

The spring L, attached to the stop-rim, catches in the notch d on the handle D, thus holding the clutch -in gear, until the stop-rim is moved so as to throw the springL out of the notch d, either the sides ot' the notch, or edges ot' the spring being so inclined, as to oder but little resistance to the motion ofthe stop-rim in either direction.

Other views of Vthis spring are shown in Figures 2 and 3; and another i'orm and arrangement are shown in Figures 4. and 5, where the spring L, instead of being fastened to the stop-rim, is secured to the handle I), and instead ot' striking into a notch, catches over a slight projection, d', upon the stop-rim B.

' Fig. 4 represents a side view, and tig. 5, a top view of this arrangement.

The object of this improvement is to allow the machine to be started at any time when one of the tension-weights has fallen from a broken thread, without rendering the stop-motion liable to be caught, so as to prevent such starting, g

Upon the spindle G, tig. 2, I place the flier H and spool I?, so that both may turn together; but instead of the flier, an upright cylinder, furnished with a suitable number of vertical ribs, as shown in Figures 9 and l0, may be used.

Upon -thc tensionweight I, is placed the rib, or spur '11, which, by engaging with the upright arms ot' the iier, or ribs ot' the cylinder, keeps thel spool from turning, until the weight is so raised as to clear the top ot' the arms, or ribs h h, when -the spool will turn, and the tension-weight fall, until itengages with the opposite, or adjoining arm, or rib.

-In connectionwith the l'lier, or cylinder, I use a spring, operating upon the thread, so as to reduce the motion imparted to the tension-weight, as the carrier passes from the inner to the outer grooves of the machine.

'This spring may be in any form,and must be placed between the tension-weight and the point where the braid is formed, and may be located at any point that v shall be most convenient or desirable.

The operation of this spring is illustrated upon carriers l and 2ot` tig. 2, where S is a guide-wire, encircled by a spiral spring, K, and provided with an eye, or any xed point, a, for the passage ot' the thread.

In carrier 1, of lig. 2, the spiral spring is connected to a sliding thimble, Q, to which is attached a hardcned-steel hook, or eye, m.

This sliding thimble is, preferably, made of wood, hard rubber, or sheet-metal, and may, by extending within the coils of the spring, be made to support the same. f

Or this thimble may extend outside of the spring,

as shown in Figuresli and l2, and will thus tend to prevent the dust or lint from collecting within the coils ofthe spring. v

' In lig. 1'1, the spring K is contained between the stationary collar R and sliding thimble Q, so that a pull uponthe thread will compress the spring; but in tig. 12, the collar Itis fastened to the guide-wire be 'low the sliding thilnble Q, so that a pull upon the thread will extend the spring.

The arrangement shown in carrier 2, of ig. 2, is somewhat similar to that shown in tig. 1I, the rspring K being compressed between the stationary collar 1i and sliding thimble Q, the hook m being held, by passing loosely through a hole in the collar R,

In threading the carrier, the sliding thimblc Q is raised by the thumb and linger, until the hook mrises through and above the eye n, when the thread can be readily caught under the hook. Now by releasing the thiinble, it will y back, through the action ot the spring, carrying the bight ofthe thrcadavith it through the eye n. 4

Other forms and arrangements o1" the spring K, op-

erating upon a bight of the thread, may be used in combination with :t tension-weight, I, and a, ier, or `cylinder, with upright arms, or ribs h h. The forms shown, however, sufficiently exemplify the principle contemplated. v

What I claim ns my invention, land desire to secure by Letters Patent, is

The combination of a handle, vD, stop-rim B,

.spring L, and spring C, operating substantially as described.

Also, the combination ofthe spool P, revolving npright arms, or ribs h h, tension-weight I, and a spring, K, operating substantially as described'.

Also, the combination of a tension-weight, I, spring K, sliding t-bimble Q, and guide-wire S, arranged upon a carrier, substantially as described. l

' Also, the combination of ai spring, K, sliding t-llimble Q, stationary collar R, guide-wire S, 'and tensionweight I, arranged upon a carrier,substantially as described.

SOGRATES SOHOLFIELD.

Witnesses:

SIMON S. LAPHAM,

WILLIAM E. BOWEN. 

